Initial

resources/app/client-esm/dice/terms/numeric.mjs

@@ -0,0 +1,59 @@
+import RollTerm from "./term.mjs";
+
+/**
+ * A type of RollTerm used to represent static numbers.
+ * @extends {RollTerm}
+ */
+export default class NumericTerm extends RollTerm {
+  constructor({number, options}={}) {
+    super({options});
+    this.number = Number(number);
+  }
+
+  /**
+   * The term's numeric value.
+   * @type {number}
+   */
+  number;
+
+  /** @inheritdoc */
+  static REGEXP = new RegExp(`^([0-9]+(?:\\.[0-9]+)?)${RollTerm.FLAVOR_REGEXP_STRING}?$`);
+
+  /** @inheritdoc */
+  static SERIALIZE_ATTRIBUTES = ["number"];
+
+  /** @inheritdoc */
+  get expression() {
+    return String(this.number);
+  }
+
+  /** @inheritdoc */
+  get total() {
+    return this.number;
+  }
+
+  /* -------------------------------------------- */
+  /*  Factory Methods                             */
+  /* -------------------------------------------- */
+
+  /**
+   * Determine whether a string expression matches a NumericTerm
+   * @param {string} expression               The expression to parse
+   * @returns {RegExpMatchArray|null}
+   */
+  static matchTerm(expression) {
+    return expression.match(this.REGEXP) || null;
+  }
+
+  /* -------------------------------------------- */
+
+  /**
+   * Construct a term of this type given a matched regular expression array.
+   * @param {RegExpMatchArray} match          The matched regular expression array
+   * @returns {NumericTerm}                   The constructed term
+   */
+  static fromMatch(match) {
+    const [number, flavor] = match.slice(1);
+    return new this({number, options: {flavor}});
+  }
+}